Wide-ranging new powers including warrantless searches of migrants' homes will be more closely monitored.
The powers granted under the Immigration Amendment Bill (No 2) have concerned Labour and the Greens, who have pulled initial support. And similar worries from across the political spectrum in the form of the Act Party have led to the Government moving to include stronger monitoring.
The reform follows reports about international students and temporary visa holders being underpaid, trapped on their employers' premises, and, in the most extreme cases, forced into prostitution.
Immigration officials will be given new tools to stamp out this kind of abuse. They were already able to enter premises but only under strict conditions and for a single purpose - to serve a deportation notice. Under the current bill immigration officials will be able to bypass police in executing warrants, and will have power to search an employer's home without a warrant to look for identity documents or compel anyone inside to answer questions.
The bill explicitly states that the powers will not be limited to business premises, but will apply to homes or dwellings. It was subject to a committee debate yesterday, with amendments put forward by Immigration Minister Michael Woodhouse.